Datasheet

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PARAMETER MEASUREMENT INFORMATION
t
h
t
su
FromOutput
UnderTest
C =50pF
(seeNote A)
L
LOADCIRCUIT
S1
6V
Open
GND
500 W
Data
Input
Timing
Input
0V
0V
0V
Input
Output
Waveform1
S1at6V
(seeNoteB)
Output
Waveform2
S1atGND
(seeNoteB)
V
OL
V
OH
0V
»0V
Output
t /t
PLH PHL
Open
TEST S1
Output
Control
1.5V
1.5V 1.5V
1.5V
1.5V
500 W
6V
t /t
PLZ PZL
GND
t /t
PHZ PZH
VOLTAGEWAVEFORMS
ENABLE ANDDISABLETIMES
VOLTAGEWAVEFORMS
PROPAGATIONDELAY TIMES
NOTES: A. C includesprobeandjigcapacitance.
B. Waveform1isforanoutputwithinternalconditionssuchthattheoutputislow,exceptwhendisabledbytheoutputcontrol.
Waveform2isforanoutputwithinternalconditionssuchthattheoutputishigh,exceptwhendisabledbytheoutputcontrol.
C. Allinputpulsesaresuppliedbygeneratorshavingthefollowingcharacteristics:PRR 10MHz,Z =50 ,t 2.5ns,
t 2.5ns.
D. Theoutputsaremeasuredoneatatime,withonetransitionpermeasurement.
L
O r
f
£ W ≤
≤
VOLTAGEWAVEFORMS
SETUP ANDHOLDTIMES
3V
3V
3V
1.5V
1.5V
3V
t
PZL
t
PLZ
t
PHZ
t
PZH
V – 0.3V
OH
V +0.3V
OL
1.5V
1.5V
V
OL
3V
V
OH
1.5V1.5V
t
PLH
t
PHL
0V
t
W
Input
VOLTAGEWAVEFORMS
PULSEDURATION
1.5V
1.5V
3V
SN54ALVTH16374 , , SN74ALVTH16374
2.5-V/3.3-V 16-BIT EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCES068G – JUNE 1996 – REVISED NOVEMBER 2006
V
CC
= 3.3 V ± 0.3 V
Figure 2. Load Circuit and Voltage Waveforms
11
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